Description:Best Buy Co., Inc. (NYSE: BBY) on Thursday reported a stronger-than-expected quarterly profit, sending shares up nearly 6 percent in pre-market trading. The retailer issued fourth quarter earnings of $310 million, or 88 cents a share, compared to a net loss of $461 million, or $1.36 a share, a year earlier. Wall Street had expected Best Buy to post a profit of $1.01 a share, according to analysts polled by Reuters. Meanwhile, sales missed analysts' average estimate of $14.66 billion and instead(4:19)